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20121112
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Search Results 0 to 9 of about 10 (some duplicates have been removed)
that, it will give what? give the energy to ping-pong ball and it itself will slow down. and so what do you do is you take these things and you bounce them off atoms like the size of carbon. did you ever hear about the heavy water? you bounce them off light atoms or molecules and these things will slow down, so they're moderated and will cause the reaction of more of this fission. you call--nuclear fission, gang, breaking apart, nuclear fission, and you will fission more atoms. anyway, this is something that cause an awful lot of excitement. because along with these two, it turns out the kinetic energy of these particles and these, all flying apart, is awesome. the energy that takes to light up new york city comes about as a result of water pouring over niagara falls. and every water drop has an energy of about this much, four electron volts. electron volts are tiny unit of energy. it's microscopic unit of energy, yeah? but four electron volts per water drop, tnt-- [makes sounds] --you get about 30 electron volts. high-octane gasoline, about 30 electron volts per molecule of combustion,
and electron or light or something hits, makes electron go up, come back down, boom, off goes the energy in the form of light. the same thing happens when you excite the innermost electrons. if you excite those-- it takes a lot more energy-- and you're knocking electron way up and it comes way back down, boom, that light photon that emerges is beyond the range of seeing. it's even beyond the ultraviolet, and that's what x-rays turned out to be. simply high frequency light from the orbital electrons jumping orbits that correspond to great energies. but after that, it was found that there were radiations coming from different minerals that did not have to do with the electron orbiting around nucleus. it had to do with the nucleus itself. and the radiations that were emitted, to make a long story short, were three different types. now you might think they'd call them maybe "a," b, c, right? but these are physicists, gang. we didn't call them "a," b, c. you know what we called them? alpha, beta, gamma. that's "a," b, c in greek, yeah? so alpha, beta, gamma ray. and it turns out that those ra
the next decade. the international energy agency says what they will pass -- as will pass on arabia with techniques such as fracking in horizontal drilling. much of the oil in question is tightly concealed and rock formations that may be blast with chemical laid in fluid and drilled in a horizontal lee as part of the extraction process. critics have raised concerns about how such forms of drilling will impact human health on the environment. president obama renewed his commitment to "freeing ourselves from foreign oil" in his reelection victory speech last week. energy department data shows u.s. imports of crude had fallen 11% this year and the country is on track to produce the most oil since 1991. the syrian military continues to launch attacks on the border town, sending hundreds of civilians fleeing to neighboring turkey. the new bombings come days after more than 11,000 syrian civilians were forced out during strikes last week, one of the largest refugee flights of this year in conflict to date. speaking in geneva, the head of disaster in crisis management at the international
, but still supplies sufficient energy to carry out day-to-day activities, just at a slower pace. strength also begins to slowly decline. at the age of 60, most men have lost 10 to 20% of their muscular strength. the percentage is even higher for women. bones lose minerals, and become shorter. the back begins to slump because of weakened muscles, and the disks in the spine begin to deteriorate, causing the bones to move closer together. as a result, both sexes begin to shrink in height as much as half an inch a year. the brain also begins to shrink with age. mental abilities and intelligence remain constant, but the rate at which the brain processes information slows down, causing slower reaction time and movement. and because an aging body requires less upkeep, metabolism slows down as well. the other thing... we wanted to check on was on your feet. they're big. for years, scientific research on aging focused only on its negative aspects. but improved medical care and extensive public health programs have dramatically increased the average human lifespan. over 31 million americans-- almos
that it takes as much time and energy for a young person to come back and then get into a different routine as it did to pare and train them to go to war. i think we need to do a lot of hard thinking, both in the department of defense, and the v.a., about what our policies and procedures are. >> but before the 11th anniversary of the war in afghanistan, we broadcast from colorado springs. we have looked at a unit that came to iraq and came back and could not turn off the kill switch, they were killing their girlfriends and their wives. the murder rate was about 14 times the rate in colorado springs. that is an important point on these issues. we see, in the peace in "the new york times," the story of staff sergeant white smith. he comes home and randomly runs down a 65-year-old woman and throws her into the back of the car and kills her. we see these her the crimes here, but what about what they are doing there? look at the case of robert bayless, the question of the court-martial at fort lewis- mcchord. >> absolutely. war is messy. certainly, these wars in iraq and afghanistan have been ve
in the automobile, energy, shipbuilding, and construction industries. this is a union spokesperson. >> we are not that bad off here, but we all have an unemployed brother or friend. everyone says the same. that was easy to get a job before even though it was a bad one, and i just don't. everyone is fed up with cuts, especially in health care, education. people talk a lot about that. >> this is the second general strike this year in spain. it comes after 53-year-old woman jumped from a balcony to her death as she was about to be evicted. the death of amaia egana mark the second suicide in two weeks related to evictions in spain as a growing mass movement put pressure on the authorities to act. for more we go to madrid where we're joined by maria carrion, independent journalist, former "democracy now!" producer from her latest piece is called "spaniards take on." start with the story of this woman who committed suicide. >> it is good to be with you. amaia egana member in the basque country and her case is especially tragic because she actually did not sure just how bad off the situation was
of the force field than here. we say that there's more energy on the charges here than here, which introduces a concept, i wanna see if you can get into, the idea of energy per charge, and we call that voltage. let me define that. energy per charge. that'd be energy in joules compared to charge. and do you know what the unit of charge is? - coulomb. - coulomb. so one joule per one coulomb is said to be an electrical pressure of one volt. so that's what voltage is, energy per charge. we saw the dome was charged up to thousands of volts. so trisha touched that thing, thousands of volts. why wasn't trisha zapped? well, she zapped a little bit, but why is she still here today? enormous amount of energy per charge, okay? but not very many charges. if trisha went home tonight and took a bobby pin and stuck into 110 volts at home, honey, trisha wouldn't be here next time maybe, yeah, okay? she'd be hurt. you know why? that's not so much energy per charge. but how many charges are gonna flow when you stick into the power company socket, a lot or a little? it begins with a l. - a lot. - a lot. so ther
, really, really nice, quality asparagus. >> the asparagus ferns gather energy and nutrients from the summer sun, then sit dormant in the fall and winter, but as soil temperatures warm in the spring, the asparagus crowns underground become active, and the bright-green stalks emerge, sometimes sprouting as much as 10 inches in one day. this growth spurt can be attributed to the san joaquin delta's formerly river-bottom soil. >> the delta peat soil is so fertile, uh, so light. it's an organic-based soil, and it really produces premium asparagus. and the stronger the crown underneath the soil, the healthier it is, the bigger the spear is. >> during peak season, 9 is the magic number. the loyal crews survey each row of asparagus, searching for those that are 9 inches, with tight tips, and therefore ripe for picking. >> well, our crews progress through the field harvesting the asparagus, the 9-inch asparagus that we're looking for, pile 'em up in windrows, and then, uh, tractors with our--with our, uh, boxes and bins on it come through, and they gather this up, place it in--gently plac
Search Results 0 to 9 of about 10 (some duplicates have been removed)